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Audio problem in Dell laptop

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To get lots of information about your sound hardware.

lspci -vvnn
cat /proc/asound/version
cat /proc/asound/card0/codec#0
amixer
aplay -l

lspci
killall pulseaudio
pulseaudio -v

Now, go here for the step-by-step procedure,
https://help.ubuntu.com/community/SoundTroubleshooting

----- DRAFT -----

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